19940847

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{5507}}^1$

素因数の和:5598

約数の個数: 16

約数和(自身を含む): 28553472

約数和(自身を除く): 8612625

約数列:

[1, 3, 17, 51, 71, 213, 1207, 3621, 5507, 16521, 93619, 280857, 390997, 1172991, 6646949, 19940847]

約数ペア:

[(1, 19940847), (3, 6646949), (17, 1172991), (51, 390997), (71, 280857), (213, 93619), (1207, 16521), (3621, 5507)]